Independent/Dependent Variables

Front

What is an independent variable?

Back

The independent variable is the factor that is changed or manipulated in an experiment to observe its effect on the dependent variable.

Front

What is a dependent variable?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

In the experiment 'Does eating breakfast improve test scores?', what is the dependent variable?

Back

The grade you got on the test.

Front

In the experiment 'Does eating breakfast improve test scores?', what is the independent variable?

Back

Eating breakfast or not.

Front

Why do we use graphs in science?

Back

Graphs are used to record and display data, show trends in data, and predict outcomes.

Front

What is a manipulated variable?

Back

The manipulated variable is what we are changing or testing in an experiment.

Front

In the plant watering experiment, what is the independent variable?

Back

The amount you water each plant.

Front

In the salt and boiling water experiment, what is the independent variable?

Back

Whether salt is added or not.

Front

What is the purpose of a control variable in an experiment?

Back

Control variables are kept the same to ensure that the experiment is fair and that the results are due to the independent variable.

Front

What is the relationship between independent and dependent variables?

Back

The independent variable is manipulated to observe its effect on the dependent variable.